Number 4 on the list is the Timeline! It may not seem too important - but believe us, it's crucial to ensuring your day runs smoothly. Beside your budget, a timeline is the most important part of planning a wedding as an event professional. Develop a reasonable timeline; make sure you give yourself- and your vendors enough time to fully plan your day. Stick to your timeline - as much as you can. And most importantly: map out your due dates on a calendar! You will never forget